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- // Copyright (c) 2014 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "net/base/network_change_notifier.h"
- #include "base/run_loop.h"
- #include "build/build_config.h"
- #include "net/base/mock_network_change_notifier.h"
- #include "net/base/network_interfaces.h"
- #include "net/test/test_with_task_environment.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace net {
- // Note: This test is subject to the host's OS and network connection. This test
- // is not future-proof. New standards will come about necessitating the need to
- // alter the ranges of these tests.
- TEST(NetworkChangeNotifierTest, NetMaxBandwidthRange) {
- NetworkChangeNotifier::ConnectionType connection_type =
- NetworkChangeNotifier::CONNECTION_NONE;
- double max_bandwidth = 0.0;
- NetworkChangeNotifier::GetMaxBandwidthAndConnectionType(&max_bandwidth,
- &connection_type);
- // Always accept infinity as it's the default value if the bandwidth is
- // unknown.
- if (max_bandwidth == std::numeric_limits<double>::infinity()) {
- EXPECT_NE(NetworkChangeNotifier::CONNECTION_NONE, connection_type);
- return;
- }
- switch (connection_type) {
- case NetworkChangeNotifier::CONNECTION_UNKNOWN:
- EXPECT_EQ(std::numeric_limits<double>::infinity(), max_bandwidth);
- break;
- case NetworkChangeNotifier::CONNECTION_ETHERNET:
- EXPECT_GE(10.0, max_bandwidth);
- EXPECT_LE(10000.0, max_bandwidth);
- break;
- case NetworkChangeNotifier::CONNECTION_WIFI:
- EXPECT_GE(1.0, max_bandwidth);
- EXPECT_LE(7000.0, max_bandwidth);
- break;
- case NetworkChangeNotifier::CONNECTION_2G:
- EXPECT_GE(0.01, max_bandwidth);
- EXPECT_LE(0.384, max_bandwidth);
- break;
- case NetworkChangeNotifier::CONNECTION_3G:
- EXPECT_GE(2.0, max_bandwidth);
- EXPECT_LE(42.0, max_bandwidth);
- break;
- case NetworkChangeNotifier::CONNECTION_4G:
- EXPECT_GE(100.0, max_bandwidth);
- EXPECT_LE(100.0, max_bandwidth);
- break;
- case NetworkChangeNotifier::CONNECTION_5G:
- // TODO(crbug.com/1127134): Expect proper bounds once we have introduced
- // subtypes for 5G connections.
- EXPECT_EQ(std::numeric_limits<double>::infinity(), max_bandwidth);
- break;
- case NetworkChangeNotifier::CONNECTION_NONE:
- EXPECT_EQ(0.0, max_bandwidth);
- break;
- case NetworkChangeNotifier::CONNECTION_BLUETOOTH:
- EXPECT_GE(1.0, max_bandwidth);
- EXPECT_LE(24.0, max_bandwidth);
- break;
- }
- }
- TEST(NetworkChangeNotifierTest, ConnectionTypeFromInterfaceList) {
- NetworkInterfaceList list;
- // Test empty list.
- EXPECT_EQ(NetworkChangeNotifier::ConnectionTypeFromInterfaceList(list),
- NetworkChangeNotifier::CONNECTION_NONE);
- for (int i = NetworkChangeNotifier::CONNECTION_UNKNOWN;
- i <= NetworkChangeNotifier::CONNECTION_LAST; i++) {
- // Check individual types.
- NetworkInterface interface;
- interface.type = static_cast<NetworkChangeNotifier::ConnectionType>(i);
- list.clear();
- list.push_back(interface);
- EXPECT_EQ(NetworkChangeNotifier::ConnectionTypeFromInterfaceList(list), i);
- // Check two types.
- for (int j = NetworkChangeNotifier::CONNECTION_UNKNOWN;
- j <= NetworkChangeNotifier::CONNECTION_LAST; j++) {
- list.clear();
- interface.type = static_cast<NetworkChangeNotifier::ConnectionType>(i);
- list.push_back(interface);
- interface.type = static_cast<NetworkChangeNotifier::ConnectionType>(j);
- list.push_back(interface);
- EXPECT_EQ(NetworkChangeNotifier::ConnectionTypeFromInterfaceList(list),
- i == j ? i : NetworkChangeNotifier::CONNECTION_UNKNOWN);
- }
- }
- }
- TEST(NetworkChangeNotifierTest, IgnoreTeredoOnWindows) {
- NetworkInterfaceList list;
- NetworkInterface interface_teredo;
- interface_teredo.type = NetworkChangeNotifier::CONNECTION_ETHERNET;
- interface_teredo.friendly_name = "Teredo Tunneling Pseudo-Interface";
- list.push_back(interface_teredo);
- #if BUILDFLAG(IS_WIN)
- EXPECT_EQ(NetworkChangeNotifier::CONNECTION_NONE,
- NetworkChangeNotifier::ConnectionTypeFromInterfaceList(list));
- #else
- EXPECT_EQ(NetworkChangeNotifier::CONNECTION_ETHERNET,
- NetworkChangeNotifier::ConnectionTypeFromInterfaceList(list));
- #endif
- }
- TEST(NetworkChangeNotifierTest, IgnoreAirdropOnMac) {
- NetworkInterfaceList list;
- NetworkInterface interface_airdrop;
- interface_airdrop.type = NetworkChangeNotifier::CONNECTION_ETHERNET;
- interface_airdrop.name = "awdl0";
- interface_airdrop.friendly_name = "awdl0";
- interface_airdrop.address =
- // Link-local IPv6 address
- IPAddress({0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4});
- list.push_back(interface_airdrop);
- #if BUILDFLAG(IS_APPLE)
- EXPECT_EQ(NetworkChangeNotifier::CONNECTION_NONE,
- NetworkChangeNotifier::ConnectionTypeFromInterfaceList(list));
- #else
- EXPECT_EQ(NetworkChangeNotifier::CONNECTION_ETHERNET,
- NetworkChangeNotifier::ConnectionTypeFromInterfaceList(list));
- #endif
- }
- TEST(NetworkChangeNotifierTest, IgnoreTunnelsOnMac) {
- NetworkInterfaceList list;
- NetworkInterface interface_tunnel;
- interface_tunnel.type = NetworkChangeNotifier::CONNECTION_ETHERNET;
- interface_tunnel.name = "utun0";
- interface_tunnel.friendly_name = "utun0";
- interface_tunnel.address =
- // Link-local IPv6 address
- IPAddress({0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 3, 2, 1});
- list.push_back(interface_tunnel);
- #if BUILDFLAG(IS_APPLE)
- EXPECT_EQ(NetworkChangeNotifier::CONNECTION_NONE,
- NetworkChangeNotifier::ConnectionTypeFromInterfaceList(list));
- #else
- EXPECT_EQ(NetworkChangeNotifier::CONNECTION_ETHERNET,
- NetworkChangeNotifier::ConnectionTypeFromInterfaceList(list));
- #endif
- }
- TEST(NetworkChangeNotifierTest, IgnoreDisconnectedEthernetOnMac) {
- NetworkInterfaceList list;
- NetworkInterface interface_ethernet;
- interface_ethernet.type = NetworkChangeNotifier::CONNECTION_ETHERNET;
- interface_ethernet.name = "en5";
- interface_ethernet.friendly_name = "en5";
- interface_ethernet.address =
- // Link-local IPv6 address
- IPAddress({0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 1, 2, 3});
- list.push_back(interface_ethernet);
- #if BUILDFLAG(IS_APPLE)
- EXPECT_EQ(NetworkChangeNotifier::CONNECTION_NONE,
- NetworkChangeNotifier::ConnectionTypeFromInterfaceList(list));
- #else
- EXPECT_EQ(NetworkChangeNotifier::CONNECTION_ETHERNET,
- NetworkChangeNotifier::ConnectionTypeFromInterfaceList(list));
- #endif
- }
- TEST(NetworkChangeNotifierTest, IgnoreVMInterfaces) {
- NetworkInterfaceList list;
- NetworkInterface interface_vmnet_linux;
- interface_vmnet_linux.type = NetworkChangeNotifier::CONNECTION_ETHERNET;
- interface_vmnet_linux.name = "vmnet1";
- interface_vmnet_linux.friendly_name = "vmnet1";
- list.push_back(interface_vmnet_linux);
- NetworkInterface interface_vmnet_win;
- interface_vmnet_win.type = NetworkChangeNotifier::CONNECTION_ETHERNET;
- interface_vmnet_win.name = "virtualdevice";
- interface_vmnet_win.friendly_name = "VMware Network Adapter VMnet1";
- list.push_back(interface_vmnet_win);
- EXPECT_EQ(NetworkChangeNotifier::CONNECTION_NONE,
- NetworkChangeNotifier::ConnectionTypeFromInterfaceList(list));
- }
- TEST(NetworkChangeNotifierTest, GetConnectionSubtype) {
- // Call GetConnectionSubtype() and ensure that there is no crash.
- NetworkChangeNotifier::GetConnectionSubtype();
- }
- class NetworkChangeNotifierMockedTest : public TestWithTaskEnvironment {
- protected:
- test::ScopedMockNetworkChangeNotifier mock_notifier_;
- };
- class TestDnsObserver : public NetworkChangeNotifier::DNSObserver {
- public:
- void OnDNSChanged() override { ++dns_changed_calls_; }
- int dns_changed_calls() const { return dns_changed_calls_; }
- private:
- int dns_changed_calls_ = 0;
- };
- TEST_F(NetworkChangeNotifierMockedTest, TriggerNonSystemDnsChange) {
- TestDnsObserver observer;
- NetworkChangeNotifier::AddDNSObserver(&observer);
- ASSERT_EQ(0, observer.dns_changed_calls());
- NetworkChangeNotifier::TriggerNonSystemDnsChange();
- base::RunLoop().RunUntilIdle();
- EXPECT_EQ(1, observer.dns_changed_calls());
- NetworkChangeNotifier::RemoveDNSObserver(&observer);
- }
- class TestConnectionCostObserver
- : public NetworkChangeNotifier::ConnectionCostObserver {
- public:
- void OnConnectionCostChanged(
- NetworkChangeNotifier::ConnectionCost cost) override {
- cost_changed_inputs_.push_back(cost);
- ++cost_changed_calls_;
- }
- int cost_changed_calls() const { return cost_changed_calls_; }
- std::vector<NetworkChangeNotifier::ConnectionCost> cost_changed_inputs()
- const {
- return cost_changed_inputs_;
- }
- private:
- int cost_changed_calls_ = 0;
- std::vector<NetworkChangeNotifier::ConnectionCost> cost_changed_inputs_;
- };
- TEST_F(NetworkChangeNotifierMockedTest, TriggerConnectionCostChange) {
- TestConnectionCostObserver observer;
- NetworkChangeNotifier::AddConnectionCostObserver(&observer);
- ASSERT_EQ(0, observer.cost_changed_calls());
- NetworkChangeNotifier::NotifyObserversOfConnectionCostChangeForTests(
- NetworkChangeNotifier::CONNECTION_COST_METERED);
- base::RunLoop().RunUntilIdle();
- EXPECT_EQ(1, observer.cost_changed_calls());
- EXPECT_EQ(NetworkChangeNotifier::CONNECTION_COST_METERED,
- observer.cost_changed_inputs()[0]);
- NetworkChangeNotifier::RemoveConnectionCostObserver(&observer);
- NetworkChangeNotifier::NotifyObserversOfConnectionCostChangeForTests(
- NetworkChangeNotifier::CONNECTION_COST_UNMETERED);
- base::RunLoop().RunUntilIdle();
- EXPECT_EQ(1, observer.cost_changed_calls());
- }
- TEST_F(NetworkChangeNotifierMockedTest, ConnectionCostDefaultsToCellular) {
- mock_notifier_.mock_network_change_notifier()
- ->SetUseDefaultConnectionCostImplementation(true);
- mock_notifier_.mock_network_change_notifier()->SetConnectionType(
- NetworkChangeNotifier::CONNECTION_4G);
- EXPECT_TRUE(NetworkChangeNotifier::IsConnectionCellular(
- NetworkChangeNotifier::GetConnectionType()));
- EXPECT_EQ(NetworkChangeNotifier::CONNECTION_COST_METERED,
- NetworkChangeNotifier::GetConnectionCost());
- mock_notifier_.mock_network_change_notifier()->SetConnectionType(
- NetworkChangeNotifier::CONNECTION_WIFI);
- EXPECT_FALSE(NetworkChangeNotifier::IsConnectionCellular(
- NetworkChangeNotifier::GetConnectionType()));
- EXPECT_EQ(NetworkChangeNotifier::CONNECTION_COST_UNMETERED,
- NetworkChangeNotifier::GetConnectionCost());
- }
- class NetworkChangeNotifierConnectionCostTest : public TestWithTaskEnvironment {
- public:
- void SetUp() override {
- network_change_notifier_ = NetworkChangeNotifier::CreateIfNeeded();
- }
- private:
- // Allows creating a new NetworkChangeNotifier. Must be created before
- // |network_change_notifier_| and destroyed after it to avoid DCHECK failures.
- NetworkChangeNotifier::DisableForTest disable_for_test_;
- std::unique_ptr<NetworkChangeNotifier> network_change_notifier_;
- };
- TEST_F(NetworkChangeNotifierConnectionCostTest, GetConnectionCost) {
- EXPECT_NE(NetworkChangeNotifier::ConnectionCost::CONNECTION_COST_UNKNOWN,
- NetworkChangeNotifier::GetConnectionCost());
- }
- TEST_F(NetworkChangeNotifierConnectionCostTest, AddObserver) {
- TestConnectionCostObserver observer;
- EXPECT_NO_FATAL_FAILURE(
- NetworkChangeNotifier::AddConnectionCostObserver(&observer));
- // RunUntilIdle because the secondary work resulting from adding an observer
- // may be posted to a task queue.
- base::RunLoop().RunUntilIdle();
- }
- } // namespace net
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